Switch Providers by
Changing a String

const models = {
  free:      '@wai/llama-3.3-70b',  // $0 — Workers AI
  efficient: 'claude-haiku-4-5',    // $0.27/1M tokens
  balanced:  'claude-sonnet-4-6',   // $2.70/1M tokens
  reasoning: 'deepseek-r1',         // $0.135/1M tokens
  premium:   'gpt-4o',              // $4.50/1M tokens
  vision:    'gemini-2.5-pro',      // $10/1M tokens
};

const response = await fetch(
  'https://app.neureus.ai/ai/chat',
  {
    method: 'POST',
    headers: { 'Authorization': `Bearer ${API_KEY}` },
    body: JSON.stringify({
      model: models.balanced,  // ← change this
      messages: [{ role: 'user', content: prompt }],
      stream: false,
    }),
  }
);
const { text, inputTokens, outputTokens, costUsd } = await response.json();

const stream = await fetch(
  'https://app.neureus.ai/ai/chat',
  {
    method: 'POST',
    headers: { 'Authorization': `Bearer ${API_KEY}` },
    body: JSON.stringify({
      model: 'claude-sonnet-4-6',  // or any model
      messages: [{ role: 'user', content: prompt }],
      stream: true,
    }),
  }
);

const reader = stream.body!.getReader();
const decoder = new TextDecoder();
while (true) {
  const { done, value } = await reader.read();
  if (done) break;
  // Each chunk: data: { "delta": "...", "done": false }
  process.stdout.write(decoder.decode(value));
}

// Store your OpenAI key (AES-GCM encrypted per tenant)
await fetch(
  'https://app.neureus.ai/ai/providers/openai',
  {
    method: 'PUT',
    headers: { 'Authorization': `Bearer ${API_KEY}` },
    body: JSON.stringify({ apiKey: 'sk-your-key' }),
  }
);

// List configured providers
const providers = await fetch(
  'https://app.neureus.ai/ai/providers',
  { headers: { 'Authorization': `Bearer ${API_KEY}` } }
).then(r => r.json());
// → [{ provider: 'openai', hasKey: true, rotatedAt: '...' }]

import { NeureuClient } from '@neureus/sdk';

const client = new NeureuClient({
  apiKey: process.env.NEUREUS_API_KEY!,
});

// Non-streaming
const result = await client.ai.chat({
  model: 'deepseek-r1',
  messages: [{ role: 'user', content: 'Solve: 2x + 5 = 13' }],
});
console.log(result.text, result.costUsd);

// Streaming
const stream = client.ai.stream({
  model: 'claude-haiku-4-5',
  messages: [{ role: 'user', content: 'Write a haiku' }],
});
for await (const chunk of stream) {
  process.stdout.write(chunk);
}